Number of Horizontal Rhombuses

Requires a Wolfram Notebook System

Interact on desktop, mobile and cloud with the free Wolfram CDF Player or other Wolfram Language products.

Requires a Wolfram Notebook System

Edit on desktop, mobile and cloud with any Wolfram Language product.

How many horizontal rhombuses are there? Is there a rule for this?

Contributed by: Izidor Hafner (December 2012)
Open content licensed under CC BY-NC-SA



A calisson is a French sweet in the shape of two equilateral triangles edge to edge. They are packed in a hexagonal box. The puzzle is to show why the number of callisons pointing in each direction, in a fully packed box, must always be equal.


[1] D. Wells, The Penguin Book of Curious and Interesting Puzzles, New York: Penguin Books, 1993 p. 133.

Feedback (field required)
Email (field required) Name
Occupation Organization
Note: Your message & contact information may be shared with the author of any specific Demonstration for which you give feedback.